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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>江西大型氣力輸送,氣力輸送</p><p><span>***更新：</span>2021-01-17 03:10:02</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8phzwol" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">常州智鼎粉體設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>韓同德</p><p><span>郵箱: </span>409766127@qq.com</p><p><span>電話: </span>13815067402</p><p><span>傳真: </span>86_</p><p><span>網(wǎng)址: </span>http://www.czzdft.com</p><p><span>手機: </span>86-13815067</p><p><span>地址: </span>五星街道新莊村委周家村49號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="m2wtvsr" class="page-proshow02"><p class="title">詳細說明</p><div id="u33wiax" class="box"><p><p style="text-indent:25px">氣力輸送堵管有什么原因：堵管經(jīng)常發(fā)生在倉泵等發(fā)送器出口不到150m的起始段內(nèi)，這是因為起始段的流速低、濃度高，江西大型氣力輸送、流態(tài)較不穩(wěn)定，隨著輸送過程中摩擦阻力對壓縮空氣能量的消耗，管內(nèi)壓力逐漸降低，比容增加，使壓縮空氣體積膨脹，流速增高，就不容易發(fā)生堵塞了，后段管道就是堵塞了也會自動疏通，因為后段管道由于控制過高的流速以防止磨損，往往采用擴徑設(shè)計，使管徑增大、濃度降低，初速也較前段設(shè)計的高，因此大粒子趨向沉積于管底，當流速在一定的范圍內(nèi)時，管底流仍能繼續(xù)輸送；萬一出現(xiàn)栓塞，由于大粒子間的縫隙大，中間可有氣流通過，同時在栓塞后堵塞位置前部的壓力會上升而增加推壓料栓的靜壓力，從而使料栓崩潰而疏通，使輸送繼續(xù)進行下去。當然在料栓崩潰時會引起壓力波動，江西大型氣力輸送，產(chǎn)生振動和響聲，行話叫“放炮”。因此一方面在設(shè)計時應(yīng)合理控制輸送流速，另一方面還應(yīng)注意后段管道支架的強度，控制滑動支架的間隙，江西大型氣力輸送，以免“放炮”時損壞支架和管道而造成事故。管內(nèi)出現(xiàn)沉積層，流道截面減少，在沉積層上方氣流仍按沉積速度運行。江西大型氣力輸送</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西大型氣力輸送,氣力輸送" src="https://tyunfile.71360.com/UploadFile/zhiding/637448356535950232/397066.png"></div><p style="text-indent:25px">設(shè)計氣力輸送系統(tǒng)確定參數(shù)：1、確定輸送量，根據(jù)企業(yè)年輸送量、單位時間物料需求量、年操作日、工作規(guī)律以及各類工藝配置情況，計算并確定氣力輸送系統(tǒng)的輸送能力設(shè)計。2、計算氣力輸送系統(tǒng)所需輸送空氣耗氣量。3、確定氣力輸送系統(tǒng)的主要部件結(jié)構(gòu)、有關(guān)尺寸：主要有輸送管路的水平長度、垂直高度、傾角、彎頭數(shù)量，以及管路結(jié)構(gòu)、材質(zhì)和支架等;分叉管和切換閥的種類、構(gòu)造、材質(zhì)以及數(shù)量;分離器和除塵器的形式、尺寸、材質(zhì)、管口方位等。4、計算氣力輸送系統(tǒng)的壓力損失。5、根據(jù)氣力輸送系統(tǒng)所需的輸送空氣量、總壓損以及有關(guān)設(shè)計條件等情況選型氣力輸送風(fēng)機的種類和容量。6、選擇電機的種類和容量。7、確定所需電機設(shè)備及所需附屬設(shè)備。8、確定啟停等運轉(zhuǎn)順序、聯(lián)鎖機安全裝置，確定控制操作盤的種類和容量。14、確定吸排氣口的位置，是否加消音裝置，確定除塵方式。9、編制安裝、調(diào)試運轉(zhuǎn)操作規(guī)程。江西大型氣力輸送確定輸送形式是正壓輸送還是負壓輸送，或者是混合輸送。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西大型氣力輸送,氣力輸送" src="https://tyunfile.71360.com/UploadFile/zhiding/637448356557562775/1455323.png"></div><p style="text-indent:25px">氣力輸送技術(shù)在糧食行業(yè)的應(yīng)用有哪些問題存在：氣力輸送系統(tǒng)設(shè)備簡單，結(jié)構(gòu)緊湊，占地面積小，現(xiàn)場輸送路線布置靈活，并且整個輸送過程與外界完全隔絕，受到氣候環(huán)境影響比較小，能夠保護物料不被雜質(zhì)污染，提高輸送質(zhì)量；并且能夠杜絕物料中的粉塵傳到生產(chǎn)車間，改善工作條件，為工人營造一個良好的工作環(huán)境。氣力輸送技術(shù)迄今為止，已經(jīng)有百年的歷史了，氣力輸送被普遍應(yīng)用于化工、電力、建材、煤炭、糧食等行業(yè)。在糧食行業(yè)中，應(yīng)用較多的就是吸送式、壓送式、混合式氣力輸送系統(tǒng)。</p><p style="text-indent:25px">減少管道磨損有哪些方法和措施呢：為了減少磨損對生產(chǎn)造成的影響，可以采取多種方法來降低氣力輸送管道的磨損，可以從管道優(yōu)化設(shè)計和改變彎頭處的材料來延長管道的使用壽命。1、彎頭弧形設(shè)計2、背包式彎頭我們所采用的背包式彎頭是由普通彎頭和扣接于彎頭外壁處的填充背包組成。物料在長期使用中將填充物磨掉，將有物料進入填充腔內(nèi)，物料將會與物料進行摩擦，減少物料對彎頭處的磨損。使彎頭的使用周期較大增加，減少更換和修補耐磨彎頭的次數(shù)。背包式彎頭彎頭為兩端敞口的空腔彎管，在彎頭軸線兩側(cè)的圓周壁外側(cè)設(shè)置肋片，肋片長度與彎頭長度相同，弧度與彎頭弧度相同，在彎頭凸起外壁外包裹填充罩，填充罩兩側(cè)與肋片相連在填充罩內(nèi)填充有填充物，填充物厚度高達4cm以上，耐磨效果好?？梢耘渥詣涌刂齐娍叵到y(tǒng)，實現(xiàn)整個系統(tǒng)無人控制及配合PLC自動控制。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西大型氣力輸送,氣力輸送" src="https://tyunfile.71360.com/UploadFile/zhiding/637448356514768551/6572102.png"></div><p style="text-indent:25px">氣力輸送系統(tǒng)設(shè)計：與濃相氣力輸送系統(tǒng)相比，稀相氣力輸送系統(tǒng)氣速高，物料在輸送過程中由于摩擦易產(chǎn)生磨損，甚至破碎；且稀相氣力輸送系統(tǒng)能耗較大，因此本系統(tǒng)不采用。濃相氣力輸送系統(tǒng)包括濃相靜壓和濃相動壓2種，其中靜壓氣力輸送系統(tǒng)料氣比較高可達50以上，并且對氣流速度要求較低，一般為5~10m/ s ，但缺點是輸送距離短、效率低，性能易受物料特性制約。因此，濃相靜壓氣力輸送方式不予考慮。綜上所述，選用濃相動壓氣力輸送系統(tǒng)作為瀝青混合料外摻劑智能投料機的風(fēng)送系統(tǒng)。智能投料機氣系統(tǒng)主要由防反風(fēng)電子稱量裝置、旋轉(zhuǎn)給料器、鼓風(fēng)機、氣料混合加速室、輸送管路組成。氣體動力源一般為旋渦式、羅茨真空泵，與物料無直接接觸。江西大型氣力輸送</p><p style="text-indent:25px">在密閉管道內(nèi)沿氣流方向輸送顆粒狀物料，是流態(tài)化技術(shù)的一種具體應(yīng)用。江西大型氣力輸送</p><p style="text-indent:25px">相輸送與稀相輸送區(qū)別：稀相輸送是即管內(nèi)高速氣體將粉狀物料彼此分散、懸浮在氣流中進行輸送。它的輸送距離不長，一般小于100米。稀相輸送主要有真空吸引式和壓送式兩種。密相輸送是用高壓氣體壓送物料，氣源壓力可高達0.7MPa，密相輸送的特點是低風(fēng)量和高固氣比，物料在管內(nèi)呈流化態(tài)或柱塞狀運動。輸送能力大，輸送距離長，可達100～1000m。密相輸送分為發(fā)送罐輸送和旋轉(zhuǎn)閥輸送。發(fā)送罐輸送是通過將發(fā)送罐加壓至一定壓力，采用切換出料閥及氣刀對物料進行分配來實現(xiàn)輸送的。這種輸送氣流速度較低而固氣比較高，輸送氣壓力較高。輸送氣體常采用空氣或氮氣，動力一般由壓縮機提供。主要特點為輸送速度低，對物料品質(zhì)影響較小。旋轉(zhuǎn)閥密相輸送是采用稀相正壓輸送方式，而動力采用壓縮機提供。系統(tǒng)具有較高壓力、較低流速但輸送能力大，對物料幾乎無影響。江西大型氣力輸送</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2879640.html</p></div></div></div></div></div><div id="b3bdp3l" class="page-right twoColRt"><div id="glif7bd" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="qfhegnp" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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